Home / 165,904.48-248,936.82-81,618.94

Finding the Fourth Proportional to 165,904.48, 248,936.82 and 81,618.94

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Solution

The fourth proportional to 165,904.48, 248,936.82 and 81,618.94 is: 122,467.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,904.48 : 248,936.82 = 81,618.94 : x
  2. Step 2: Convert to fraction form
    165,904.48/248,936.82 = 81,618.94/x
  3. Step 3: Cross multiply
    165,904.48x = 248,936.82 × 81,618.94
  4. Step 4: Simplify right side
    165,904.48x = 20,317,959,375.37
  5. Step 5: Solve for x
    x = 20,317,959,375.37/165,904.48
  6. Step 6: Final answer
    x = 122,467.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.